The formula for the are of a trapezoid is as follows:
where the b₁ and b₂ are the lengths of the bases and the h is the height of the trapezoid.
Substitute the given values into the equation.
Simplify the expression inside the parentheses. Add.
Divide 4 by 2.
Multiply 17 by 2.
Therefore, the area is 34 cm squared.